Fixed dummy QT gui classes; added pyQT6 and pyqtgraph to optional dependencies

Author: klemengit

pyidi/GUIs/__init__.py

@@ -12,18 +12,12 @@
     from .result_viewer import ResultViewer
 else:
     class SelectionGUI:
-        def __init__(self, video):
-            pass
-            
-        def show_displacement(self, data):
+        def __init__(self, *args, **kwargs):
             raise RuntimeError("SelectionGUI requires PyQt6: pip install pyidi[qt]")
-    
+
     class ResultViewer:
-        def __init__(self):
-            pass
-            
-        def show_displacement(self, data):
+        def __init__(self, *args, **kwargs):
             raise RuntimeError("ResultViewer requires PyQt6: pip install pyidi[qt]")
-        
+
 from .selection import SubsetSelection
 from .gui import GUI

pyproject.toml

@@ -48,6 +48,11 @@ dev = [
     "nbsphinx_link",
 ]
 
+qt = [
+    "pyqt6",
+    "pyqtgraph",
+]
+
 [project.urls]
 homepage = "https://github.com/ladisk/pyidi"
 documentation = "https://pyidi.readthedocs.io/en/latest/"